Just wanted to chime in here...
I've been checking FCC IDs and doing a lot of research...
The '09, '10 Acura TSX flip has the same transponder as our Crosstour remotes.
It has a trunk release button, but a replacement faceplate from the RDX remote will fix that.
It's a $$ solution, but it would mean a genuine Honda/Acura OEM part. (I've ordered the Ebay solution pictured in this thread, and I'm staring at it wondering if I want to take my chances)
Part # 35113-TL0-A00
(That is for Driver 1, For Driver 2 replace the last bit with "A10")
It's $177 from the Honda eStore, but I've found it for $100 if you shop around online.
RDX Faceplate replacement
Part # 35118-STK-A01
That will run about $12
You would have to get it cut and programmed at the dealer, and I've heard quotes for this anywhere between $35-$90.
If I decide to pull the trigger and go for this (which I'm sure I will eventually... I may wait for pay day) I'll keep everyone updated.
Here is a picture of the Acura Flip Key (right) I'm hotlinking to from another forum. It should give you an idea of what it's like: